Liquid fuel burner



Jan. 2, 1934. E. T. BABcocK ET AL 1,941,320

LIQUID FUEL BURNER Filed April 20, 1933 A; s I M o I /8J 1: I

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gmmufo cs llzfla5tocl flllBabcoel alt/tow Patented Jan. 2, 1934 PATENT OFFICE LIQUIDVFUEL BURNER i Erlow T. Babcock and Arthur H. Balicock, North I Loup, Nebr.

3 Claims.

This. invention relates to burners and more particularly to a liquid fuel burner.

An ohjectv of this invention is to provide an improved type of fuel. burner for use with-liquid fuel, the device comprehending the use of an initial down draft through the burner.

Another object of this invention is to provide a burner and heating flue which is so constructed that it may be incorporated in any desired casing for heating purposes.

A further object of this invention is to provide a burner of this type which is so constructed that it can be readily cleaned, the burner embodying only a relatively small number of parts. v The above and various other objects and advantages of this invention will in part be described and in part be understood from the following detailed description of the present preferred embodiment, the same being illustrated in the accompanying drawing wherein:-

Figure 1 is a detail side elevation of a burner constructed according to the preferred embodiment of this invention.

Fig. 2 is an enlarged fragmentary vertical section of the device.

Figure 3 is a detail top plan view of the burner.

Referring to the drawing wherein like numerals of reference designate corresponding parts throughout the several views, the numeral "designates generally a spiral flue or heating coil which is connected at its upper end to a vertical riser 13 which in turn may be connected to any smoke pipe or outlet. The lower end of the flue or coil 10 terminates in a vertically disposed casing 11, which extends substantially axially of the coil 10 and terminates at a point closely adjacent the top convolution of this coil.

This casing 11 constitutes a combustion chamber which is open at the top and communicates at the bottom with the coil 10 so that the products of combustion in the chamber 11 will pass downwardly therethrough and then upwardly in a spiral path through the coil 10 and out through the riser or smoke pipe 13. A fuel well 12 is car- .ried by the combustion chamber or casing 11 at a point spaced downwardly from the open upper end, and a fuel supply line 14 is connected to the casing 11 and communicates with the well 12 so that the liquid fuel may be discharged into this well.

A cap, generally designated as 15, engages over the top of the casing 11, and is provided with a horizontally disposed central portion 16 having an opening 17 therethrough, which opening is of a diameter less than the inside diameter Serial No. 667,107

of the well 12. Suspended within the combustion chamber or casing 11 is a perforated cylindrical member 18 having an open upper end 19 and a closed bottom 20.

The side wall. of the perforated member 18 is provided with a plurality of perforations 21 through which air is adapted to pass into the space between the periphery of member 18 and the side wall of the combustion chamber 11. This perforated member 18 constitutes a means whereby the entrance of air into the combustion chamber may be regulated the size of the openings 21 depending on the character of the liquid fuel used in the burner well 12. Preferably, the diameter of the perforated member or draft regulating means 18 is less than the diameter of the opening 17, so that a small quantity of air may also pass about the periphery of the member 18 at the upper end thereof so as to provide sulficient oxygen for burning of the fuel in the burner 12. The draft member 18 is suspended within the combustion chamber 11 by means of a plurality of radially arranged outstanding arms 22, which engage the top of the plate 16. The plate 16 is also provided at a point above the well 12 with a lighting opening 23 and a closure plate or cover 24 is adapted to be manually moved relative to the opening 23, and when in closed position, will prevent the rising of any flame through this opening and will also prevent the passage of any air through the opening 23.

In the use and operation of this burner and heater, the desired fuel may be discharged through the fuel supply line 14 into the well 12, and the closure plate 24 carried by the cap 15 may then be moved into open position exposing the lighting opening 23. The desired means may then be passed through this lighting opening 23 to light the fuel.

When the fuel has been lighted, the closure 24 may be moved into closed position and the flame from the fuel in the well 12 will then be drawn downwardly through the combustion chamber or casing 11, and the air passing through the perforated draft member 18 will commingle with the products of combustion. The draft will cause the heat generated by the burner hereinbefore described to be drawn through the spiral flue or heating member 10 and then out through the discharge pipe 13. It is, of course, understood that any desired jacket or housing may be positioned about the heating coil or flue 10.

it is, of course, understood that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims.

What is claimed is:-

1. A liquid fuel burner comprising a combustion chamber open at one end, a spiral flue communicating with the combustion chamber, a cap positioned over the open end of the combustion chamber and having a draft opening therethrough, a well secured to the wall of the combustion chamber at a point adjacent the top thereof, means for supplying fuel to the well, a perforated draft member, and means for supporting the draft member from said cap in depending relation within the combustion chamber, said draft member being open to the atmosphere at one end and closed at the other end, said closed end being positioned within the combustion chamber.

2. A liquid fuel burner comprising a vertically disposed cylindrical casing open at its upper end, a coil secured to the lower end of the casing and extending about the casing, one end of the coil being open to the atmosphere, a fuel well secured to the inner surface of the casing at a point spaced downwardly from the top thereof, a cap engaging the top of the casing and having a central draft opening therethrough, and a perforated draft member open at the top and closed at the bottom supported from said cap and having a portion thereof disposed below said well.

3. A liquid fuel burner comprising a vertically disposed cylindrical combustionlchamber open at the top, a spiral heating flue secured at one end to said combustion chamber, said combustion chamber being disposed axially of the convolutions of said heating flue, a fuel well secured to said combustion chamber at a point spaced downwardly from the top thereof, means for supplying liquid fuel to said well, a cap engaging'the top of the combustion chamber above the well, said cap having a lighting opening therethrough, a closure for said opening, and a draft member suspended from said cap and extending downwardly into the combustion chamber, said draft member being open at the top and having perforations in the wall thereof to permit the passage of air downwardly therethrough and into the combustion chamber below the well.

ERLOW T. BABCOCKL ARTHUR H. BABCOCK. 

